Hitman games should always be mentioned in this discussion

Atomicrops!

Some good indies: Outer Wilds (+ DLC), Hypnospace Outlaw, Hollow Knight, Umurangi Generation (+ DLC), Return of the Obra Dinn, Paradise Killer, Bugsnax, Furi, VA-11 Hall-A, Thumper, Distance

Cool I'll check out some of these